Shelf divider



FIG. 1 is a perspective view of a shelf divider, showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof, opposite to the front elevational view of FIG. 2;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a side elevational view thereof, opposite to the side elevational view of FIG. 4;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a shelf divider, as shown and described. 